// Copyright (C) 2019-2025 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.

// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along
// with this library; see the file COPYING3.  If not see
// <http://www.gnu.org/licenses/>.

// { dg-do compile { target c++11 } }

#include <memory>

struct D1
{
  void operator()(int* p) const noexcept { }
};

struct D2 : D1
{
  D2& operator=(D1&&) noexcept { return *this; }
};

void
test01()
{
  std::unique_ptr<int, D1> d1;
  std::unique_ptr<int, D2> d2;
  d2 = std::move(d1);
}

void
test02()
{
  std::unique_ptr<int[], D1> d1;
  std::unique_ptr<int[], D2> d2;
  d2 = std::move(d1);
}
